* Solutions are homogeneous mixtures: This means the components are evenly distributed throughout the mixture, and you can't visually distinguish them. For example, salt dissolved in water creates a solution.
* Oil and vinegar are immiscible: This means they don't mix. Oil is nonpolar, while vinegar (mainly water and acetic acid) is polar. These different polarities cause them to separate into distinct layers.
What is a mixture of oil and vinegar?
It's a heterogeneous mixture. This means the components are not evenly distributed and you can clearly see the different phases (oil and vinegar).
